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Finding the Fourth Proportional to 51,464.20, 72,205.40 and 51,464.20

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Solution

The fourth proportional to 51,464.20, 72,205.40 and 51,464.20 is: 72,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,464.20 : 72,205.40 = 51,464.20 : x
  2. Step 2: Convert to fraction form
    51,464.20/72,205.40 = 51,464.20/x
  3. Step 3: Cross multiply
    51,464.20x = 72,205.40 × 51,464.20
  4. Step 4: Simplify right side
    51,464.20x = 3,715,993,146.68
  5. Step 5: Solve for x
    x = 3,715,993,146.68/51,464.20
  6. Step 6: Final answer
    x = 72,205.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.